Woven fabric



Patented Dec. 13, 1932 UNITED STATES PATENT OFFICE NORBERT VOHS, OF MUNIGH-GLADBACH, GERMANY WOVEN FABRIC N Drawing. Application filed March 12, 1931, Serial No. 522,166, and in Germany April 25, 1930.

This invention relates to a method of manby to save up to of the cost of the maufacturing cloth, that is, such woven fabrics terlal. as are subjected during thelr finishing to a VVhat I claim 1s: felting process by fulling. 1, A lulled fabric with warp threads con-' 5 In most cases various materials are used slsting essentlally of wool and a weft 1n each for cloth such as wool, artificial wool, cotton shed consistlng of two different threads, both and also silk which are generally spun toessentially of wool, those fibres which have gether to make yarn. It has been found that about the same length of staple and similar raw materials which duffel as regards length physlcal and chemical properties being comof staple. curling, elasticlty, thlckness of fibre bmed in each of these threads, and the length and the like do not generally give homogeneof staple and the physical and chemlcal propous threads and when spun together in the ertles of one of the two weft threads belng usual manner in fulling do not give a. good different from the corresponding propertles felting effect. This is also the case with pf the other weft thread, and the two weft 6C cloths in which different kinds of the same LhlGfidS lying side by slde 1n the same shed raw material, for erample, wool, are used, as without belng twlsted together. here also the physical, chemical, and other 2, A fulled fabric with warp threads conproperties of the different sorts differ from sisting essentlally of wool and a weft in each one another and therefore make it diflicult for shed consistlng of two different threads, both r q 29 the mixture to become homogeneous. It has essentially of wool, those fibres whlch have now been found that cloths take on a more about the same length of staple and similar attractive appearance in fulling 1f, as weft physical and chemical properties belng c01nthreadstwo different threads are introduced, bined in each of these threads, and the length each of which contains raw materials which, of staple and the physical and chem1calpropas regards their physical or chemical propcities of one of the two weft threads being erties, curling, staple or the like are most l rent from the correspondlng properties nearly the same or supplement one another fthe Qtherweft thread, and one weft thread and, if these two threads are introduced in belng l lvl ually twisted in one direction the same shed, either in doubled form or and the Other 1 t e other dlrection, and the 8 U one after the other. In this way, as has been two Weft thlseads y f y sldeelll the found, the more valuable material has a bet- $31116 d W Out-bemg twlsted together. ter appearance than when it is oon'ibined with A st fabllc Wlth p f Q COII' less valuable material and a more complete if i z y ij of 9i Wefb 1n e c and satisfactory felting'takes place on full- S ec 9 0 {'fi d1 i w g l fq lfig h in It has also been found that the de r e essentla y 0 W00 1 lose 1 16S V1101 ave v L ZlbOllb the same length of staple and sinnlar or feltlng can be further lncreased 1f the two 1 1 d 1 1 1 b threads are twisted in opposite directions. g 5 f g g};

me in eaci o iese rea s, an 1e eng I Accordmg to the kind of materials combined of Staple and the p y and chemical p p 40 1n the different threads, the felt may also be I d t 1 1 erties of one of the two weft threads being lmproled 1f one urea 13 twls ec more Dose different from the correspondlng properties 3 and other 'lyof the other weft thread, one weft thread be- Accordlng the mventlol} h dlfi'erent ing individually twisted tightly in one direc- Weaving mammals can be dlstrlbuted CV91 tion and the other weft thread loosely in the more than tW0 threads, eXample threeother direction, and the two weft threads ly- According to this method it is possible to ingside by side in the same shed without beobtain from the same materials a more valuin twisted together.

able cloth than according to previous procn testimony whereof I have signed my esses or to obtain a cloth of the same value name to this specification.

as hitherto from cheaper materials and there- NOR-BERT VOHS. 

